<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>用户登录</title>
</head>
<body>
</body><form action="dl" method="post">
    <h1>登录</h1>
    用户名:<input type="text" name="username"><br><br>
    密  码:<input type="password" name="password"><br><br>
    <input type="submit" value="登录">
    <input type="reset" value="重置">
</form>
</html>